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प्रश्न
State whether the given chemical reaction is a redox reaction or not. Justify your answer.
\[\ce{MnO_2 + 4HCl->MnCl_2 +2H_2O + Cl_2}\]
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उत्तर
The given reaction is an example of an oxidation-reduction reaction or redox reaction.
A substance is oxidised when it receives or loses hydrogen during a process. A material is decreased when it loses oxygen or absorbs hydrogen during a process. HCl loses hydrogen in the proposed process to generate Cl2. The provided reaction is thus a redox reaction.
संबंधित प्रश्न
Identify the substances that are oxidised and the substances that are reduced in the following reaction.
\[\ce{4Na(s) + O2(g) -> 2Na2O(s)}\]
Which of the statements about the reaction below are incorrect?
\[\ce{2PbO(s) + C(s) → 2Pb(s) + CO2(g)}\]
- Lead is getting reduced.
- Carbon dioxide is getting oxidised.
- Carbon is getting oxidised.
- Lead oxide is getting reduced.
Define reduction.
Explain the following in term of gain or loss of oxygen with two examples.
Oxidation
State whether the following conversion is oxidation or reduction:
2Cl- - e-→ Cl2
When the positive charge on an ion increases or the negative charge on them decreases it is called as _______.
Identify the oxidising agent (oxidant) in the following reactions
`"V"_2"O"_5 + 5"Ca" -> 2"V" + 5"CaO"`
Which among the following are physical or chemical change?
Sublimation of solid ammonium chloride
Why do we store silver chloride in a dark coloured bottle?
You are provided with two containers made up of copper and aluminium. You are also provided with solutions of dilute HCl, dilute HNO3, ZnCl2 and water. In which of the above containers, can these solutions be kept?
